Metal sheet-piling.



c. H. QUIMEY, In. METAL SHEET HUNG.

APPLICATION m'ail mm.

' Pmemml M 16, 1916.

fair.

CHARLES HENRY QUIMBY, J'R., F MOUNT VE'ltIll'lIlN, NEW "E'UlttSHEIElT-PELING.

Application filed April 2, wi l.

' whereby the pile as driven, interlocks with the adjoining pile andforms a continuous wall or sheet of piling. Such piling is now generallyused for coflendams, retaining walls core-walls of clams. sheeting" ofeX- cavations and for numerous other purposes.

The object of the invention is to provide a novel metallic Sheet pilinghaving novel interlocking edges, the construction of which permits thepiling to be assembled in various forms without using specialconstructed pieces.

Another object of this invention is to pro vide a metallic sheetpiling'of such construction that the independent piles or sections will havetheir metal so distributed as to give them the greatest strength for theamount of material used, both as to stiffness and longitudinalresistance to fail-- ure in the interlock.

FVith the above and other objects in View the invention consists in thenovel construction, combination and arrangement of parts to behereinafter more fully dcscribeth and specifically pointed out in theclaims.

In describing the invention in detail erence is had to the accompanyingdrawings, "forming a part of this application and wherein like lettersof reference indicate like parts throughout the several views. in whichFigure 1 is a top plan view of one form of my improved metal sheetpiling", showing one pile or section complete, engaging the adjoiningpile of like form or crossscction, Fig. 2 illustrates a top plan Viewshowing a full pile section of a modified form. in which the web iscurved. Fig. 3 illustrates a top plan View showing" a modified form of afull pile section in which the web Specification of Letters Patent.

allerg Serial No. 830,187.

lies on or near the center line oif A when assembled, Fig". lillustrates c i plan view showing a full pile section oil a tillmodified form, and Fig. illostr: plan view showing a full pile sec"mm'lilied form in which the lan out of the plane of the weir to site tothat shown in Fig. 1.

By reference to the drawing. it l-m seen that Fig. l illustrates a formof pilinp; in which a is the web; cc is the compound hook and guardflange; ZJOZ the llangc; and f an inclosure or groove termed b: l

udc oppohook flange and the near leg of the 'llan The groove is of suchsize and form .;.'J conveniently receive the flange ii a" joining pile.The outer arr c .li flange and the legs ol the i'llanggc l l.approximately the same plane at an to the line of slltfilll'lg. and at ad apart sullicicnt to allow the stem. Z ol l flange of the adjoiningpile to pass l tween freely. lily this arrangement flanges, a completetriple hook inter-loch secured, when the piling is asscniljiletl. toform a continuous line or sheet namely, 0 to Z), L to band 7) to c; anda. douhlehoolit and guard interlock is secured when the pil-- Bl? ing isassembled to form an ai'igle 7) to 71", b to c and o to act as tl Thehook flange a, groove and le flange I), face at an angle It. to lisheeting. Two adjoining piles when as sembled in a reverse fori'nationor as piles a and a". form a anpgle angle Y is always equal to doublelac Should the angle X equal if) dc the angle l would equal degrees 7rectangular formation or inter-loc at on; sheeting could he secured.tlhoi gle X equal degrees, the an equal degrees and the line could hecontinued on that a1, angle of 4-53 degrees added a solar formationsecured with corner pile only, set at -l. 'i l this it will be seen thatthe p. l sembled in such lines and angles a suit the conditions.

The novel features of the princil'ially the tollowiuir: arranging thellul'lQQS ct t ie tr to secure a complete triple hook engagement whenassembled in a continuous sheet, and a double hook and guard engagementwhen assembled in the reverse position to form an angle; the placing ofthe terminal portions of the hooks of a triple hook interlock, in thesame plane, so as to allow them to be assembled in an alined or angularformation; and the arrangement of the flanges in a complete triple hookinterlocking sheet pile, in such a manner as to allow the rolling of thepiles in their manufacture, to be done With a comparatively littlebending of the metal in the final pass.

The function of the curved guard flange of the present types of piling,is only that of retaining the hook flanges of the like adjoining pilesin their engagement one with the other, while the complete triple hookflange form has a compound hook flange opposite the double or T flangewhich serves a double purpose, namely, that of retaining the T flangesof the adjoining piles in engagement as a guard, and that of hookingabout the outer leg or hook of the T flange of the adjoining pile, toresist its tendency to rotate under strain. The failure of the interlockdue to longitudinal strain in the sheet of piles is manifested generallyby a spreading or bending out of the hook flanges. With the presentforms there is a single hook and guard, or a double hook arrangement ofthe flanges, but with this complete triple hook interlock, threecomplete hooks are used.

It is evident that the three hooks of the triple hook interlock whenunder maximum load, act as a lever, since the stress is taken up by thethree hooks and balanced before failure. Under this condition, the legsof the T flanges act as the lever arms, the stress on the single hooksbeing applied at the long end of the lever arms, the fulcrum being atthe point of contact of the inner legs of the T flanges, and the loadsapplied through the stems of the T flanges. As the lever arms are aboutdouble the length of the load arms, the load on the stem of the Tflanges could be approximately double the stress on the hook flanges, orthe stress on the hook flange one-third the total load transmitted fromthe web. It must be noted however, that these conditions are onlyreached at the point of failure, as at other times the stress on thesingle hook flange is less than onethird the total load transmitted fromthe web. It is for this reason that the complete triple hook formdescribed gives an increased strength of the interlock over the presentforms, of 50% to 100%, for equal weight of piles or sections.

In the device, I have provided a groove j which allows suflicient roomfor the T flange or the inclosed flange of the adjoining plle to movefreely and permit of the piles following a curved line. The curved linealong which a sheet of piling may follow, is limited however, to a fewdegrees of angle between the adjoining piles, the greater angles beingprovided for by reversing the piles in the interlock. The extra space inthe groove may also be used, if desired, to permit strips of wood orother material to be inserted as packing, to add to the watertightnessof the interlock. This however, is not very often necessary as thecontacts of the flanges are generally sufficiently tight to prevent anyconsiderable amount of leakage.

The piles or sections will be manufactured from steel or other suitablematerial, the best plan being to use steel and roll them in integralsections. These piling forms can be economically rolled.

Several modified forms have been illustrated, any two of which may beinterlocked together, but it will be understood however, that otherforms of slight variations from these, may be resorted to withoutdeparting from the spirit of my invention.

What I claim as new and desire to secure by Letters Patent is l. A metalsheet pile comprising a Web portion having flanged vertical edges, eachof the said edges consisting of one member curved out of the plane ofthe Web and terminating in two free edges bent back on either side, andanother member curved out of the plane of the web and its outer portionbent back toward the other member, the same being adapted to interlockwith a like adjoining pile in a direct position to be alined or in areverse position to set at an angle.

2. A metal sheet pile comprising a Web portion having flanged verticaledges, each i of the said edges consisting of one member curved out ofthe plane of the Web and terminating in two free edges bent back oneither side and another member curved out of the plane of the web andits outer portion bent back toward the other member, the same beingadapted to interlock with a like adjoining pile, as a triple hookengagement in the direct position, and as a double hook and guardengagement in the reverse position.

8. A metal sheet piling interlock comprising in combination, a T shapeflange, a hook shape flange and a groove, the free edges of the said Tflange and edge of the said hook flange to lie in the same plane, thesaid groove to be formed by the said hook flange and'near edge of thesaid T flange, the said groove adapted to receive a like T flange andthe outer edge of the T flange adapted to engage a like hook flange of alike adjoining combination in an alined formation, and

uiugl the said groove adapted to receive a like E Nestchester and Stateof New York this flange of a hke ildjlJlnlllg eomblnatlon when 2nd dayof Aprll A. D. 1914. reversed to form an angle, 1n whleh engage- \AIA)\Y)-,' ment the said hook flange fallsn'ithln the (JHMLEEJ Hhhhl QUIMBL5 groove of and is guarded by the hook flange Witnesses:

of the adJOinmg hke combination. GEORGE SPIGER,

Signed at Mount Vernon in the county of V. F. McCLELLAN.

